Method of filling and sealing developmental pit and fissures
Abstract
Abstract Dental developmental pit and fissure sealant composition comprising component A composed essentially of a thermosetting resin of the formula: WHEREIN R1 is hydrogen or alkyl of one to four carbon atoms; and R is (CH2CH2-O)x wherein x is an integer of 1 to 5, and an accelerator for said resin; and component B composed in one embodiment essentially of a solution of a peroxide catalyst for the resin of A, and in an alternative embodiment including additional resin of A. The fissure sealant compositions disclosed have excellent surface tension characteristics, low viscosity, and good penetration ability. The sealant compositions are applied stepwise by first applying a drop of either component to a cleaned and primed surface of a tooth to be sealed, allowing it to penetrate for 30 seconds, then applying a drop of the other component, allowing the components to remain in contact with each other for two minutes, and then removing any excess unpolymerized material. In a preferred embodiment component A comprises diethyleneglycol dimethacrylate and N-bis(hydroxyethyl)-p-toluidine accelerator, and component B is comprised of diethyleneglycol dimethacrylate and benzoyl peroxide catalyst, the latter component being applied to the tooth first.
Inventors
- 👤 H Lee
- 👤 J Orlowski
- 👤 A Kobashigawa
Bibliographic Details
Claims Analysis
Total Claims: 13References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |